Mechanical stability of cylindrical thin-shell wormholes

M Sharif, M Azam - The European Physical Journal C, 2013 - Springer
In this paper, we apply the cut and paste procedure to the charged black string for the
construction of a thin-shell wormhole. We consider the Darmois–Israel formalism to …

Radiating composite stars with electromagnetic fields

SD Maharaj, BP Brassel - The European Physical Journal C, 2021 - Springer
We derive the junction conditions for a general spherically symmetric radiating star with an
electromagnetic field across a comoving surface. The interior consists of a charged …

Cracking of compact objects with electromagnetic field

M Azam, SA Mardan, MA Rehman - Astrophysics and Space Science, 2015 - Springer
In this paper, we investigate the role of electromagnetic field on the stability regions of
charged self-gravitating compact objects by using the concept of cracking. For this purpose …

Dynamical stability of collapsing stars in Einstein Gauss-Bonnet gravity

G Abbas, S Sarwar - Astrophysics and Space Science, 2015 - Springer
This paper is devoted to study the stability/instability of the expansionfree self gravitating
source in the framework of Einstein Gauss-Bonnet gravity. The source has been taken as …

Dynamics of anisotropic collapsing spheres in Einstein Gauss–Bonnet gravity

G Abbas, M Zubair - Modern Physics Letters A, 2015 - World Scientific
This paper is devoted to investigate the dynamics of the self-gravitating adiabatic and
anisotropic source in 5D Einstein Gauss–Bonnet gravity. To this end, the source has been …

Cracking of some compact objects with linear regime

M Azam, SA Mardan, MA Rehman - Astrophysics and Space Science, 2015 - Springer
Compact stars serve as a logical regimen for the implementation of theoretical models that
are difficult to understand from an experimental setup. In our present work, we discuss the …

Fate of Electromagnetic Field on the Cracking of PSR J1614‐2230 in Quadratic Regime

M Azam, SA Mardan… - Advances in High Energy …, 2015 - Wiley Online Library
We study the cracking of compact object PSR J1614‐2230 in quadratic regime with
electromagnetic field. For this purpose, we develop a general formalism to determine the …

Dynamics of the dissipative gravitational collapse in Einstein-Gauss-Bonnet gravity

G Abbas, M Tahir - The European Physical Journal Plus, 2018 - epjplus.epj.org
In this work, we have investigated the effects of dissipation on the dynamics of a collapsing
sphere with heat flux in 5-dimensional Einstein-Gauss-Bonnet gravity. For this purpose, the …

Cracking of some polytropic models via local density perturbations

M Azam, I Nazir - Canadian Journal of Physics, 2021 - cdnsciencepub.com
In this paper, we have checked the stability of some anisotropic charged generalized
polytropic models by using the concept of cracking, founded by Nasim and Azam (Astrophys …

Role of anisotropy in the expansion-free plane gravitational collapse

M Sharif, M Azam - General Relativity and Gravitation, 2014 - Springer
In this paper, we study the instability range of the collapsing fluid bounded by the plane
geometry. For this purpose, the expansion-free dynamical equations in Newtonian and post …